VISAM TAG UPDATE INTERVAL

[R.Best]

After my additions, VISAM Runtime is getting slower. For example I press button and it takes 4 second to action.

Should it be realted woth Update Integral?

I am using Visam 11.7.0.1 in Windows 7 Professional.

PLease check the attachment. What should I select ?

Hi,
an update interval change wont help with the cycle time or general reaction time of the runtime. Moreover you should address your variables more efficently.
Currently you are linking each variable individually. Cycle time wise one read request that consists of 10 variables takes the same time as a read request that consists of 1 variable. So you should summarize your remote addresses.
For example the variables from PV 009 to PV 019 can be one request block as they all lie behind each other in the same data block.
Remove the channel linkage from the variables PV 010 to PV 019 and then change the "count" from PV 009 to 11. Then all variables will be collected with one request and as such this request block will only take 1/10th of the previous time for the same operation as you get all variables in one request instead of 11 individual requests.



Do this for all remote addresses where this is possible when the addresses lie in sequence and the runtime should be noticeably faster.

You also use the same remote address for PV 002, 003 and 004 and you are still running a very old version with 11.7.0.1 and should definitely update to the latest 11.7.0.7 version.

Best regards
Roman Best